Chrysanthemum plant named ‘DLFARIS1’

ABSTRACT

A new and distinct cultivar of  Chrysanthemum  plant named ‘DLFARIS1’, characterized by its upright plant habit; vigorous growth habit; dark green-colored leaves; uniform and freely flowering habit; strong upright flowering stems with numerous inflorescences; single-type inflorescences with white-colored ray florets and bright yellow green-colored disc florets; and relative tolerance to high and low production temperatures.

Botanical designation: Chrysanthemum x morifolium.

Cultivar denomination: ‘DLFARIS1’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar ofChrysanthemum plant, botanically known as Chrysanthemum x morifolium,commercially grown as a cut flower and hereinafter referred to by thename ‘DLFARIS1’.

The new Chrysanthemum plant is a product of a planned breeding programconducted by the Inventor in Maasdijk, The Netherlands. The objective ofthe breeding program is to create new freely-flowering cut Chrysanthemumplants with attractive inflorescences, strong flowering stems andexcellent postproduction longevity.

The new Chrysanthemum plant originated from a cross-pollination made bythe Inventor in Maasdijk, The Netherlands on Aug. 20, 2014, of aproprietary selection of Chrysanthemum x morifolium identified as codedesignation DB 10267, not patented, as the female, or seed, parent witha proprietary selection of Chrysanthemum x morifolium identified as codedesignation DB 11285, not patented, as the male, or pollen, parent. Thenew Chrysanthemum plant was discovered and selected by the Inventor as asingle flowering plant from within the progeny of the statedcross-pollination in a controlled greenhouse environment in Maasdijk,The Netherlands on Apr. 15, 2015.

Asexual reproduction of the new Chrysanthemum plant by terminalvegetative cuttings in a controlled greenhouse environment in Maasdijk,The Netherlands since Apr. 15, 2015 has shown that the unique featuresof this new Chrysanthemum plant are stable and reproduced true to typein successive generations.

SUMMARY OF THE INVENTION

Plants of the new Chrysanthemum have not been observed under allpossible combinations of environmental conditions and culturalpractices. The phenotype may vary somewhat with variations inenvironmental conditions such as temperature, daylength and lightintensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘DLFARIS1’. These characteristics incombination distinguish ‘DLFARIS1’ as a new and distinct Chrysanthemumplant:

-   -   1. Upright plant habit; vigorous growth habit.    -   2. Dark green-colored leaves.    -   3. Uniform and freely flowering habit.    -   4. Strong upright flowering stems with numerous inflorescences.    -   5. Single-type inflorescences with white-colored ray florets and        bright yellow green-colored disc florets.    -   6. Relatively tolerant to high and low production temperatures.

Plants of the new Chrysanthemum differ from plants of the female parentselection in the following characteristics:

-   -   1. Leaf apices of plants of the new Chrysanthemum are more        pointed than and not as round as leaf apices of plants of the        female parent selection.    -   2. Ray florets of plants of the new Chrysanthemum are shorter        and broader than ray florets of plants of the female parent        selection.

Plants of the new Chrysanthemum differ from plants of the male parentselection in the following characteristics:

-   -   1. Ray florets of plants of the new Chrysanthemum are straight        whereas ray florets of plants of the male parent selection are        reflexed.    -   2. Plants of the new Chrysanthemum are more susceptible to White        Rust (Puccinia horiana) than plants of the male parent        selection.

Plants of the new Chrysanthemum can be compared to plants ofChrysanthemum x morifolium ‘Bacardi’, not patented. In side-by-sidecomparisons plants of the new Chrysanthemum differ from plants of‘Bacardi’ in the following characteristics:

-   -   1. Ray florets of plants of the new Chrysanthemum are white in        color whereas ray florets of plants of ‘Bacardi’ are creamy        white in color when developing.    -   2. Disc florets of plants of the new Chrysanthemum are bright        yellow green in color whereas disc florets of plants of        ‘Bacardi’ are more yellow in color.

Plants of the new Chrysanthemum can also be compared to plants ofChrysanthemum x morifolium ‘DLFESCE1 ’, not patented. In side-by-sidecomparisons plants of the new Chrysanthemum differ from plants of‘DLFESCE1’ in the following characteristics:

-   -   1. Leaves of plants of the new Chrysanthemum are longer than        leaves of plants of ‘DLFESCE1’.    -   2. Leaves of plants of the new Chrysanthemum have deeper sinuses        than leaves of plants of ‘DLFESCE1’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearanceof the new Chrysanthemum plant showing the colors as true as it isreasonably possible to obtain in colored reproductions of this type.Colors in the photographs may differ slightly from the color valuescited in the detailed botanical description which accurately describethe colors of the new Chrysanthemum plant.

The photograph on the first sheet comprises a side perspective view of atypical flowering stem of ‘DLFARIS1’ grown as a spray-type.

The photograph on the second sheet comprises close-up views of the lower(top of the photographic sheet) and upper surfaces (bottom of thephotographic sheet) of typical inflorescences and leaves of ‘DLFARIS1’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations andmeasurements describe plants grown during the winter in ground beds in aglass-covered greenhouse in Maasdijk, The Netherlands and under culturalpractices typical of commercial cut Chrysanthemum production. Plantswere initially given long day/short night treatments followed by shortday/long night treatments to induce flower initiation and development.During the production of the plants, day temperatures ranged from 18° C.to 22° C., night temperatures ranged from 20° C. to 25° C. and lightlevels averaged 8 klux. Plants were grown as single-stem plants and wereten weeks old when the photographs and the description were taken. Inthe following description, color references are made to The RoyalHorticultural Society Colour Chart, 2015 Edition, except where generalterms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum x morifolium ‘DLFARIS1’.-   Parentage:    -   -   Female, or seed, parent.—Proprietary selection of            Chrysanthemum x morifolium identified as code designation DB            10267, not patented.        -   Male, or pollen, parent.—Proprietary selection of            Chrysanthemum x morifolium identified as code designation DB            11285, not patented.-   Propagation:    -   -   Type.—Terminal vegetative cuttings.        -   Time to initiate roots, summer.—About six days at            temperatures about 24° C.        -   Time to initiate roots, winter.—About eight days at            temperatures about 22° C.        -   Time to produce a rooted young plant, summer.—About twelve            days at temperatures about 24° C.        -   Time to produce a rooted young plant, winter.—About two            weeks at temperatures about 22° C.        -   Root description.—Fine, fibrous; typically creamy white in            color, actual color of the roots is dependent on substrate            composition, water quality, fertilizers, substrate            temperature and physiological age of roots.        -   Rooting habit.—Freely branching, medium density.-   Plant description:    -   -   Plant and growth habit.—Herbaceous single daisy-type cut            flower that is typically grown as a single stem spray-type;            upright plant habit; vigorous growth habit and rapid growth            rate.        -   Plant height, soil level to top of foliar plane.—About 78.4            cm.        -   Plant height, soil level to top of inflorescence            plane.—About 81.8 cm.        -   Plant (spray) diameter.—About 19.8 cm.        -   Flowering stem length.—About 73 cm.        -   Flowering stem diameter.—About 7 mm.        -   Flowering stem internode length.—About 2.3 cm.        -   Flowering stem strength.—Strong.        -   Flowering stem aspect.—Erect.        -   Flowering stem texture and luster.—Slightly to moderately            pubescent; slightly glossy.        -   Flowering stem color, developing.—Close to 144A, at the            internodes, close to 146B.        -   Flowering stem color, developed.—Close to 146A and 146B.        -   Leaf description.—Arrangement: Alternate; simple. Length:            About 12 cm. Width: About 8.7 cm. Shape: Broadly ovate.            Apex: Short apiculate. Base: Attenuate. Margin: Palmately            lobed, coarsely crenate; sinuses convergent and medium to            deep in depth. Texture and luster, upper surface: Sparsely            pubescent, not rugose; moderately velvety; very slightly            glossy. Texture and luster, upper surface: Moderately            pubescent, prominent venation; slightly velvety; matte.            Venation pattern: Pinnate, reticulate. Color: Developing            leaves, upper surface: Close to 143A. Developing leaves,            lower surface: Close to between 146B and 146C. Fully            developed leaves, upper surface: Close to NN137A; venation,            close to 146B. Fully developed leaves, lower surface: Close            to 147B; venation, close to 147C. Petioles: Length: About            1.8 cm. Diameter: About 3 mm by 4 mm. Strength: Moderately            strong. Texture and luster, upper surface: Densely            pubescent; moderately glossy. Texture and luster, lower            surface: Densely pubescent; slightly glossy. Color, upper            surface: Close to 148B; edges, close to NN137B. Color, lower            surface: Close to 148C; edges, close to 147B. Stipules:            Quantity and appearance: Two leafy stipules, opposite, at            the petiole attachment to the stem. Length: About 1.5 cm.            Width: About 1.3 cm. Shape: Flabellate. Texture and luster,            upper surface: Sparsely pubescent; very slightly glossy.            Texture and luster, upper surface: Moderately pubescent;            matte. Color, upper surface: Close to NN137A. Color, lower            surface: Close to 147B.-   Inflorescence description:    -   -   Appearance.—Single-type (daisy) inflorescence form with            obovate-shaped ray florets and tubular disc florets;            inflorescences borne perpendicular to peduncles and face            mostly upright to slightly outwardly; ray and disc florets            develop acropetally on a capitulum.        -   Fragrance.—Faintly fragrant.        -   Flowering response.—Under natural conditions, plant flower            in the autumn/winter in the Northern Hemisphere; at other            times of the year, inflorescence initiation and development            can be induced under short day/long night conditions (at            least 13.5 hours of darkness); uniform flowering habit and            short response time, plants exposed to two weeks of long            day/short night conditions after planting followed by            photoinductive short day/long night conditions flower about            50 days later when grown as a spray-type.        -   Postproduction longevity.—Good postproduction longevity; in            an interior environment, inflorescences and foliage will            maintain good color and substance for about two weeks;            inflorescences persistent.        -   Quantity of inflorescences.—Freely flowering habit; when            grown as a spray-type, about 16 inflorescences develop per            flowering stem.        -   Inflorescence size.—Diameter: About 6.8 cm. Depth (height):            About 2.1 cm. Disc diameter: About 1.6 cm.        -   Receptacles.—Height: About 4 mm. Diameter: About 6 mm.            Shape: Flattened globular. Color: Close to 147D.        -   Inflorescence buds.—Height: About 1.4 cm. Diameter: About            1.4 cm. Shape: Roughly globular. Texture and luster:            Distally, smooth and glabrous; proximally, slightly            pubescent; very slightly glossy. Color: Distally, close to            155C (immature ray florets); proximally, close to 143A and            143B.        -   Ray florets.—Quantity and arrangement: About 16 arranged in            about two whorls. Length: About 3.5 cm. Width: About 1.6 cm.            Shape: Obovate; very slightly convex, moderately carinate.            Apex: Broadly acute. Base: Attenuate. Margin: Entire; not            undulate. Aspect: Initially upright to about 65° from            vertical. Texture and luster, upper surface: Smooth,            glabrous; moderately velvety; matte. Texture and luster,            lower surface: Smooth, glabrous; moderately velvety;            slightly glossy. Color: When opening, upper and lower            surfaces: Close to NN155D. Fully opened, upper and lower            surfaces: Close to NN155D; venation, close to NN155D; color            does not change with development.        -   Disc florets.—Quantity and arrangement: About 220 spirally            arranged in about eight whorls at the center of the            receptacle. Length: About 6.5 mm. Diameter: About 1.8 mm.            Shape: Lower 75% fused into a tube; upper 25% free. Apex:            Acute. Margin: Entire. Texture and luster, inner and outer            surfaces: Smooth, glabrous; glossy. Color, when opening,            inner and outer surfaces: Apex: Close to 144A. Mid-section:            Close to 154C. Base: Close to 145C. Color, fully opened,            inner and outer surfaces: Apex: Close to 145A. Mid-section:            Close to 154B to 154C. Base: Close to 145C to 145D.        -   Involucral bracts.—Quantity and arrangement: About 22            arranged in two whorls. Length: About 1 cm. Width: About            4 mm. Shape: Ovate. Apex: Obtuse. Base: Cuneate. Margin:            Entire. Texture and luster, upper surface: Smooth, glabrous;            glossy. Texture and luster, lower surface: Sparsely to            moderately pubescent; very slightly glossy. Color, upper            surface: Close to 143A; margins, translucent, and close to            157D; apices, close to N199A. Color, lower surface: Close to            137A to 137B; margins, translucent, close to 157D; apices,            close to N199A.        -   Peduncles.—Length, terminal peduncle: About 4.2 cm.            Diameter, terminal peduncle: About 3 mm. Length, third            peduncle: About 6.1 cm. Diameter, terminal peduncle: About            3 mm. Strength: Strong. Aspect, terminal peduncle: Mostly            upright. Aspect, third peduncle: About 45° from the            flowering stem axis. Texture and luster: Moderately            pubescent; matte. Color: Close to 143A.        -   Reproductive organs.—Androecium: Present on disc florets            only. Quantity: About five per floret. Filament length:            About 2 mm. Filament color: Close to 150D. Anther size:            About 0.5 mm by 2 mm. Anther shape: Narrowly oblong. Anther            color: Close to 12B. Pollen amount: Scarce. Pollen color:            Close to 17B. Gynoecium: Present on both ray and disc            florets. Quantity: One per floret. Pistil length: About            5 mm. Style length: About 4.5 mm. Style color: Close to            N144B. Stigma diameter: About 1.5 mm. Stigma shape: Cleft,            decurrent. Stigma color: Close to 6B. Ovary color: Close to            145B.        -   Seeds and fruits.—To date, seed and fruit production have            not been observed on plants of the new Chrysanthemum.-   Pathogen & pest resistance: Plants of the new Chrysanthemum have    been observed to be resistant to Fusarium Wilt (Fusarium    oxysporum f. sp. chrysanthemi) and Verticillium Wilt (Puccinia    horiana). To date, resistance to pests and other pathogens common to    Chrysanthemum plants has not been observed on plants of the new    Chrysanthemum grown under commercial conditions.-   Temperature tolerance: Plants of the new Chrysanthemum have been    observed to tolerate temperatures ranging from about −12° C. to    35° C. and to be suitable for USDA Hardiness Zones 8 to 10.

It is claimed:
 1. A new and distinct Chrysanthemum plant named ‘DLFARIS1’ as illustrated and described. 